Android EditText Enter key Event example

How to create input textbox in Android and capture ENTER key event

In this example we will learn the following

• Create input textbox (EditText) using XML layout resource
• Retrieve the value entered in the textbox
• Ability to capture EditText ENTER key event

Source for the Screen Layout - main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
 android:layout_width="fill_parent" android:layout_height="fill_parent"
 android:orientation="vertical">

 <TextView android:layout_width="fill_parent"
  android:layout_height="wrap_content" android:text="@string/hello"
  android:layout_marginBottom="10dp" />
 <TextView android:id="@+id/someText1" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:padding="5dp"
  android:text="Text Box1" 
  android:textAppearance="?android:attr/textAppearanceMedium" />
 
 <EditText android:id="@+id/editText1" android:layout_width="match_parent"
  android:layout_height="wrap_content" android:ems="10"
  android:inputType="textMultiLine" android:layout_marginBottom="10dp">

  <requestFocus />
 </EditText>
 <TextView android:id="@+id/someText2" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:padding="5dp"
  android:text="Text Box2" 
  android:textAppearance="?android:attr/textAppearanceMedium" />
 
 <EditText android:id="@+id/editText2" android:layout_width="match_parent"
  android:layout_height="wrap_content" android:ems="10"
  android:inputType="textMultiLine" android:layout_marginBottom="10dp">
 </EditText>
 
 <TextView android:id="@+id/responseText" android:layout_width="wrap_content"
  android:layout_height="wrap_content" android:padding="5dp"
  android:text="" 
  android:textAppearance="?android:attr/textAppearanceMedium" />

</LinearLayout>

Source for the Activity - AndroidEnterKeyActivity.java

package com.as400samplecode;

import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnKeyListener;
import android.view.inputmethod.EditorInfo;
import android.widget.EditText;
import android.widget.TextView;

public class AndroidEnterKeyActivity extends Activity implements OnKeyListener {

 @Override
 public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.main);

  EditText editText1 = (EditText) findViewById(R.id.editText1);
  editText1.setOnKeyListener(this);
  EditText editText2 = (EditText) findViewById(R.id.editText2);
  editText2.setOnKeyListener(this);

 }

 @Override
 public boolean onKey(View view, int keyCode, KeyEvent event) {
  
  TextView responseText = (TextView) findViewById(R.id.responseText);
  EditText myEditText = (EditText) view;
  
  if (keyCode == EditorInfo.IME_ACTION_SEARCH ||
   keyCode == EditorInfo.IME_ACTION_DONE ||
   event.getAction() == KeyEvent.ACTION_DOWN &&
   event.getKeyCode() == KeyEvent.KEYCODE_ENTER) {
   
   if (!event.isShiftPressed()) {
    Log.v("AndroidEnterKeyActivity","Enter Key Pressed!");
    switch (view.getId()) {
    case R.id.editText1:
     responseText
     .setText("Just pressed the ENTER key, " +
      "focus was on Text Box1. " +
      "You typed:\n" + myEditText.getText());
     break;
    case R.id.editText2:
     responseText
     .setText("Just pressed the ENTER key, " +
      "focus was on Text Box2. " +
      "You typed:\n" + myEditText.getText());
     break;
    }
    return true; 
   }                
  
  }
  return false; // pass on to other listeners. 

 }

}